👉 A petrosphere is a type of star shaped object, also known as a "petrol sphere," that is formed when two or more objects are fused together. The process involves heating up the fusion material, which then melts and expands into a solid form. This process can be likened to the way that oil is poured into a container until it cools down and turns into a gas. The term "petrosphere" comes from Greek mythology where it was used as an epithet for